water hyacinth

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Related to Eichornia crassipes: Eichhornia, Eichhornia crassipes

water hyacinth:

see pickerelweedpickerelweed,
common name for the Pontederiaceae, a family of chiefly tropical perennial aquatic herbs found in freshwater. The pickerelweeds (genus Pontederia) range north into temperate regions, including most of the E United States and Canada.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Water Hyacinth


(Eichornia crassipes; formerly E. speciosa), a perennial herbaceous aquatic plant of the family Pontederiaceae. The stem is short, with rosettes of oval leaves. The leaf petioles are filled with air and inflated like bubbles to ensure that the plant floats on the water surface. The rhizomes are long, so that if the water dries out, the plant takes root in the muddy bottom. The flowers are in a spicate inflorescence with a funnelform lilac perianth of six lobes and six stamens. The fruit is a capsule.

The water hyacinth is native to tropical and subtropical regions of North and South America. It has spread to the fresh waters of all tropical lands. A pernicious aquatic weed, it forms dense thickets in rivers, obstructing navigation and contaminating drainage and irrigation systems. The water hyacinth is controlled by mechanical and chemical methods; in some countries it is used as fertilizer or livestock feed.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Pistia stratiotes, Eichornia crassipes and Dichanthium annulatum were found to play comparatively key role in uptaking of heavy metals.
Optimization of a proces s for preparing carboxymethyl cellulose from water hyacinth (Eichornia Crassipes).
Most of the littoral zone is covered by large banks of aquatic macrophytes, such as Eleocharis interstincta, Typha domingensis, Eichornia crassipes and Nynphaea sp.
The world's most invasive aquatic weed, Eichornia crassipes (waterhyacinth) rafts on the slow moving currents of the Rio Grande and lodges in the giant reed/common reed zone.
Water hyacinth, Eichornia crassipes, has lovely blue flowers and its stems and roots are ideal for fish to lay their eggs.
Along the Madeira River, in the Amazon Basin, the highest plant values of mercury, 0.91 and 1.04 [micro]g/g, were obtained in 1986 for Victoria amazonica and Eichornia crassipes, respectively (Martinelli et al., 1988).